JSPM

Formatting Date objects as strings since 2013

sprintf formatting targetted for CLI

maximally minimal string formatting library

String formatting inspired by Python's str.format()

Various string formatting & utility functions

Hex string formatters for 4/8/16/24/32/48/64bit words, hexdump formatting of binary data

Parse, clean, remove formatting (unformat) numbers in strings.

String formatting library for node.js

String formatting for Node.js and AngularJS.

ANSI colors for stringd formatting

POSIX sprintf(3)-style String Formatting for JavaScript

Simple link and newline text formatting for react

Util.format-like string formatting utility.

Lightweight module for formatting numbers to a human readable string

String formatting like Python's .format()

A lightweight, modular and stand-alone JavaScript implementation of a string formatting function that supports composite format strings, globalization and customization

Python flavored string formatting

String difference with colour for Node.js and ANSI formatting. [PUBLIC]

Data Olympics - reversing strings and formatting dollars into strings like a champ.

tiniest string formatting library

Helps with complex printf-style formatting

A Typescript formatting library inspired by c# string.format("My {0} string", "Hello World")

Dead simple string formatting

Utilities for transforming and formatting text (i.e. strings)

Python string formatting mini-language, transcoded from Jython.

Functional-ish JavaScript string formatting, with inspirations from Python.

Modify strings, generate sourcemaps

Esoteric string formatting

Simple Python-style string formatting for JS

Apply flexible numeric masks to any string. Perfect for phone numbers, documents, and custom input formatting.

A collection of useful string formatting utilities

ANSI escape codes for styling strings in the terminal

Strip ANSI escape codes from a string

Terminal string styling done right

Regular expression for matching ANSI escape codes

Java's String.format() compatible string formatting library for JavaScript.

Wordwrap a string with ANSI escape codes

A comprehensive collection of TypeScript/JavaScript utility functions for common programming tasks. Includes validation, object manipulation, date handling, string formatting, and more. Zero dependencies, fully typed, and optimized for performance.

ANSI escape codes for manipulating the terminal

Slice a string with ANSI escape codes

Easily add ANSI colors to your text and symbols in the terminal. A faster drop-in replacement for chalk, kleur and turbocolor (without the dependencies and rendering bugs).

String Formatting for JavaScript

Opinionated HTML formatter focused towards making HTML diffs readable.

CommonJS version - The smallest and fastest command-line coloring package on the internet

A collection of personal utilities to live a happier life

A lightweight and powerful utility library for advanced string manipulation, case conversion, and formatting.

Easy string formatting script

Simple micro templating

Terminal string styling with tagged template literals

The smallest and fastest command-line coloring package on the internet

Get the visual width of a string - the number of columns required to display it

Escape RegExp special characters

The string_decoder module from Node core

Get the native type of a value.

The color gray, in ansi.

Check if the character represented by a given Unicode code point is fullwidth

Newline character converter

Strip UTF-8 byte order mark (BOM) from a string

Parse JSON with more helpful errors

Get a stream as a string, Buffer, ArrayBuffer or array

Convert a dash/dot/underscore/space separated string to camelCase or PascalCase: `foo-bar` → `fooBar`

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

Beautiful color gradients in terminal output

Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet

Returns true if a string has an extglob.

Strip the final newline character from a string or Uint8Array

Efficient implementation of Levenshtein algorithm with locale-specific collator support.

Matches strings against configurable strings, globs, regular expressions, and/or functions

prelude.ls is a functionally oriented utility library. It is powerful and flexible. Almost all of its functions are curried. It is written in, and is the recommended base library for, LiveScript.

Indent each line in a string

Compare strings containing a mix of letters and numbers in the way a human being would in sort order.

ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.

The color cyan, in ansi.

The color red, in ansi.

`JsSimpleDateFormat` is for formatting and parsing date-time and duration. It formats a `Date` object to be a string as the defined pattern. It can also parse a string to be a `Date` object based on the defined pattern. It supports the pattern which is

Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Convert a camelized string into a lowercased one with a custom separator: unicornRainbow → unicorn_rainbow

Parse String to Number based on configuration

Get the real length of a string - by correctly counting astral symbols and ignoring ansi escape codes

ES5 spec-compliant shim for String.prototype.trim

Measure the difference between two strings using the Levenshtein distance algorithm

A robust HTML entities encoder/decoder with full Unicode support.

Querystringify - Small, simple but powerful query string parser.

Strip leading whitespace from each line in a string

A JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.

Small footprint URL parser that works seamlessly across Node.js and browser environments

Normalize a URL

Truncate a string to a specific width in the terminal

Strip redundant indentation and indent the string

Get the shortest leading whitespace from lines in a string

Robustly get an object's own property keys (strings and symbols), including non-enumerables when possible

Compile regular expressions' unicodeSets (v) flag.

Generate a cryptographically strong random string

Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.

Generate a unique random string

Strips ANSI Control Characters from string or stream

A robust & optimized `String.prototype.repeat` polyfill, based on the ECMAScript 6 specification.

Returns true if a value exists, false if empty. Works with deeply nested values using object paths.

A robust polyfill for the `CSS.escape` utility method as defined in CSSOM.

Detect the indentation of code

Repeat the given string n times. Fastest implementation for repeating a string.

Get the visual width of the widest line in a string - the number of columns required to display it

Determine the East Asian Width of a Unicode character

Trim newlines from the start and/or end of a string

Check if a string has ANSI escape codes

mdast utility to get the plain text content of a node

Parse regular expressions' unicodeSets (v) flag.

Functions for dealing with a PostgresSQL connection string

Fastest Levenshtein distance implementation in JS.

LZ-based compression algorithm

A robust & optimized `String.prototype.includes` polyfill, based on the ECMAScript 6 specification.

a few common utility template tags for ES2015

Tokenize a string into an array of string parts and format identifier objects.

Wildcard matching tools

Compute ripemd160 of bytes or strings.

Convert object keys to camel case

Check if a character is decimal

Parse and stringify URL query strings

Generate string from a token array by interpolating values.

Check if a character is hexadecimal

Get the gzipped size of a string or buffer

Check if a character is alphanumerical

micromark utility to decode markdown strings

Check if a character is alphabetical

Easy way to split a string on a given character unless it's quoted or escaped.

Math and string formula parser.

Convert a string to pascal case (upper camelcase).

Convert object keys from camel case

Library of miscellaneous formatting and helper functions

Strip ANSI color codes from a string. No dependencies.

Convert milliseconds to a human readable string: `1337000000` → `15d 11h 23m 20s`

Create an array by repeating the given value n times.

A module that parses a string as regular expression and returns the parsed value.

Compare strings containing a mix of letters and numbers in the way a human being would in sort order.

Split a string on the first occurance of a given separator

Isomorphic, functional type-checking for Javascript

The color green, in ansi.

Hashing made simple. Get the hash of a buffer/string/stream/file.

The color grey, in ansi.

The color dim, in ansi.

Get the system locale

Cross-platform success symbol.

The color yellow, in ansi.

The color bold, in ansi.

The color bgblue, in ansi.

The color italic, in ansi.

The color bgyellow, in ansi.

The color bgred, in ansi.

Convert a string index to its line and column position

The color bgwhite, in ansi.

The color inverse, in ansi.

Cross-platform warning symbol.

The color blue, in ansi.

The color bgcyan, in ansi.

The color bgmagenta, in ansi.

Cross-platform error symbol.

Convert a string to a valid safe filename

Compare alphanumeric strings the same way a human would, using a natural order algorithm

The color underline, in ansi.

The color bggreen, in ansi.

The color hidden, in ansi.

Remove wrapping quotes from a string.

The most efficient JS implementation calculating the Levenshtein distance, i.e. the difference between two strings.

The color magenta, in ansi.

Mapping between standard locale identifiers and Windows locale identifiers (LCID)

Functional errors with formatted output

The color reset, in ansi.

The color black, in ansi.

The color white, in ansi.

The color strikethrough, in ansi.

The color bgblack, in ansi.

Cross-platform info symbol.

Formattable string with the same API as an intrinsic string

Convert a value to a ReadableStream

Various helper utilities

ES2017 spec-compliant String.prototype.padEnd shim.

Multi-colour console output from chalk with added awesome

Useful utilities for working with Uint8Array (and Buffer)

Trim a consecutively repeated substring: foo--bar---baz → foo-bar-baz

Repeat a string - fast

Returns `true` if the value is a primitive.

Functions that surround a string with ansicolor codes so it prints in color.

Convert a string/promise/array/iterable/asynciterable/buffer/typedarray/arraybuffer/object into a stream

Strip a substring from the start/end of a string

Customizable String Formatter

Simple wildcard matching

Remove the trailing spaces from a string.

generic javascript number/string formatting (bytes, milliseconds, ...)

Check if a string is a URL

Escape strings for use as JavaScript string literals

Capitalize every word in a string: `unicorn cake` → `Unicorn Cake`

Remove leading indentation from ES6 template literals.

Stringify Object as tree structure

hast utility to get the plain-text value of a node

Iterate any iterable JS value. Works robustly in all environments, all versions.

Serializes any DOM node into a String

Lightweight and performant natural sorting of arrays and collections by differentiating between unicode characters, numbers, dates, etc.

Strip a byte order mark (BOM) from a string.

A TypeScript port of the Java StringTemplate 4 library

Pluralize a word

Get the line and column number of a specific character in a string

Stringify is to `eval` as `JSON.stringify` is to `JSON.parse`

A string formatter and validator based on masks

A simple string template function based on named or indexed arguments

Returns true if a windows file path has invalid characters.

Terminal string styling done right

fast string hashing function

A javascript library for formatting and manipulating text (strings).

Parse JavaScript one character at a time to look for snippets in Templates. This is not a validator, it's just designed to allow you to have sections of JavaScript delimited by brackets robustly.

String manipulation extensions for Underscore.js javascript library.

Native JS murmur hash implementation

Check if a character is a whitespace character

hast utility to get the plain-text value of a node according to the `innerText` algorithm

Check if a string is SVG

Elegant spinner for interactive CLI apps

Check if a character is a word character

Find multiple RegExp matches in a string

DOMParser.parseFromString for XML with IE8 fallback

Regular expression for matching HTML comments

Jest snapshot serializer that beautifies HTML.

Reduce function calls in a string, using a callback

Pure-JS printf

Right pad a string with zeros or a specified string. Fastest implementation.

Convert Unicode characters to Latin characters using transliteration

A robust & optimized `String.fromCodePoint` polyfill, based on the ECMAScript 6 specification.

Slugify a string

Returns true if a file path does not contain any invalid characters.

Remove any existing casing from a string.

sprintf parser and basic formatter

Various helper utilities for working with buffers and binary data

Check if a string is an IP address

ES2017 spec-compliant String.prototype.padStart shim.

ES2019 spec-compliant String.prototype.trimLeft shim.

Convert a string to space case.

nlcst utility to transform a tree to a string

Returns `true` if an array has a glob pattern.

Returns true if the value passed is all whitespace.

Extensible string utility for converting, identifying and flipping string case

remove diacritics from strings

String encoding utilitlies extracted from TweetNaCl.js

ES2019 spec-compliant String.prototype.trimLeft shim.

Convert HTML entities to HTML characters, e.g. `>` converts to `>`.

Math and string formula parser.

Lightweight format utility for the browser, based on util.format().

Serialises error object to normal object

A robust & optimized `String.prototype.codePointAt` polyfill, based on the ECMAScript 6 specification.

Check if a string only contains alphanumeric characters

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Write data to a random temporary file

Convert efficiently index to/from line-column in a string